tofsee | 756a600939ad6af309ab14197ef667cdb23c755b10bd957a71f1089f35fe134a

General

Target

9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe
Size

120KB
MD5

9d70ecfe374efce15ae7055af48ad6fc
SHA1

5e5715a0c2446079f133dbf3bb764ede794f6494
SHA256

756a600939ad6af309ab14197ef667cdb23c755b10bd957a71f1089f35fe134a
SHA512

5b5f83e81347167114c2a2b5448dc95acd5afea2e2f752f48b47c480e1d2276e214e56b08c57cfe7945c4fa6fb98981fe75eb3701a6b5c9e609f00515424b6e2
SSDEEP

3072:y12SAsHG9akBThPFu6wJnpo33ebEvTHM4O:y6NaiFkJnpjbEjM4

Score

10^/10

tofsee evasion execution persistence trojan

Malware Config

Extracted

Family

tofsee

C2

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

3320 netsh.exe

pid	process
3320	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wnodthvk\ImagePath = "C:\\Windows\\SysWOW64\\wnodthvk\\xwiejtdq.exe"	svchost.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

svchost.exe

pid process

2080 svchost.exe
Executes dropped EXE 1 IoCs

Processes:

xwiejtdq.exe

pid process

1780 xwiejtdq.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

xwiejtdq.exe

description pid process target process

PID 1780 set thread context of 2080 1780 xwiejtdq.exe svchost.exe
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exesc.exesc.exe

pid process

1880 sc.exe
920 sc.exe
2432 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2080	svchost.exe

pid	process
1780	xwiejtdq.exe

description	pid	process	target process
PID 1780 set thread context of 2080	1780	xwiejtdq.exe	svchost.exe

pid	process
1880	sc.exe
920	sc.exe
2432	sc.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exexwiejtdq.exe

description	pid	process	target process
PID 1836 wrote to memory of 1008	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	cmd.exe
PID 1836 wrote to memory of 1008	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	cmd.exe
PID 1836 wrote to memory of 1008	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	cmd.exe
PID 1836 wrote to memory of 4024	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	cmd.exe
PID 1836 wrote to memory of 4024	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	cmd.exe
PID 1836 wrote to memory of 4024	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	cmd.exe
PID 1836 wrote to memory of 2432	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 2432	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 2432	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 1880	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 1880	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 1880	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 920	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 920	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1836 wrote to memory of 920	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	sc.exe
PID 1780 wrote to memory of 2080	1780	xwiejtdq.exe	svchost.exe
PID 1780 wrote to memory of 2080	1780	xwiejtdq.exe	svchost.exe
PID 1780 wrote to memory of 2080	1780	xwiejtdq.exe	svchost.exe
PID 1780 wrote to memory of 2080	1780	xwiejtdq.exe	svchost.exe
PID 1780 wrote to memory of 2080	1780	xwiejtdq.exe	svchost.exe
PID 1836 wrote to memory of 3320	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	netsh.exe
PID 1836 wrote to memory of 3320	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	netsh.exe
PID 1836 wrote to memory of 3320	1836	9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1836

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wnodthvk\
2⤵
PID:1008

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xwiejtdq.exe" C:\Windows\SysWOW64\wnodthvk\
2⤵
PID:4024

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wnodthvk binPath= "C:\Windows\SysWOW64\wnodthvk\xwiejtdq.exe /d\"C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
2⤵
- Launches sc.exe
PID:2432

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wnodthvk "wifi internet conection"
2⤵
- Launches sc.exe
PID:1880

C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wnodthvk
2⤵
- Launches sc.exe
PID:920

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
2⤵
- Modifies Windows Firewall
PID:3320

C:\Windows\SysWOW64\wnodthvk\xwiejtdq.exe
C:\Windows\SysWOW64\wnodthvk\xwiejtdq.exe /d"C:\Users\Admin\AppData\Local\Temp\9d70ecfe374efce15ae7055af48ad6fc_JaffaCakes118.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1780

C:\Windows\SysWOW64\svchost.exe
svchost.exe
2⤵
- Sets service image path in registry
- Deletes itself
PID:2080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

1

T1569

Service Execution

1

T1569.002

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

2

T1543

Windows Service

2

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\xwiejtdq.exe

Filesize
13.2MB

MD5
09489ac2250d41ea7c5370aa3ba559ee

SHA1
f41afaf83ad9427ebddbc9edc4c06c440db28a58

SHA256
3c6207edbc3fd0f27c2a7138071f83afaabec5453460e925fdd22d50ce6d32e5

SHA512
387ba5ff28f3d3bcc0d65ffe0fce84ace62633a0c980891c5acf196fb895abeaf2cf618f70df6f358d3e6dfa46eed4fa37f5b627c2facd5ece2f5a54d35c7d6a

Download Submit
memory/1780-6-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

Filesize
4KB

Download
memory/1780-7-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1780-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1836-13-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1836-2-0x0000000000530000-0x0000000000531000-memory.dmp

Filesize
4KB

Download
memory/1836-1-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/1836-0-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2080-8-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/2080-12-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/2080-14-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/2080-15-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download
memory/2080-16-0x0000000000510000-0x0000000000525000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads